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<center><h1>PictureDump.java</h1></center><p><br>

Below is the syntax highlighted version of <a href = "PictureDump.java">PictureDump.java</a>.
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<pre><tt><span class="comment">/******************************************************************************</span>
<span class="comment"> *  Compilation:  javac PictureDump.java</span>
<span class="comment"> *  Execution:    java PictureDump width height &lt; file</span>
<span class="comment"> *  Dependencies: BinaryStdIn.java Picture.java</span>
<span class="comment"> *  Data file:    </span><span class="url">http://introcs.cs.princeton.edu/stdlib/abra.txt</span>
<span class="comment"> *  </span>
<span class="comment"> *  Reads in a binary file and writes out the bits as w-by-h picture,</span>
<span class="comment"> *  with the 1 bits in black and the 0 bits in white.</span>
<span class="comment"> *</span>
<span class="comment"> *  % more abra.txt </span>
<span class="comment"> *  ABRACADABRA!</span>
<span class="comment"> *</span>
<span class="comment"> *  % java PictureDump 16 6 &lt; abra.txt</span>
<span class="comment"> *</span>
<span class="comment"> ******************************************************************************/</span>

<span class="preproc">package</span><span class="normal"> edu</span><span class="symbol">.</span><span class="normal">princeton</span><span class="symbol">.</span><span class="normal">cs</span><span class="symbol">.</span><span class="normal">algs4</span><span class="symbol">;</span>

<span class="preproc">import</span><span class="normal"> java</span><span class="symbol">.</span><span class="normal">awt</span><span class="symbol">.</span><span class="normal">Color</span><span class="symbol">;</span>


<span class="comment">/**</span>
<span class="comment"> *  The </span><span class="keyword">&lt;tt&gt;</span><span class="comment">PictureDump</span><span class="keyword">&lt;/tt&gt;</span><span class="comment"> class provides a client for displaying the contents</span>
<span class="comment"> *  of a binary file as a black-and-white picture.</span>
<span class="comment"> *  </span><span class="keyword">&lt;p&gt;</span>
<span class="comment"> *  For additional documentation,</span>
<span class="comment"> *  see </span><span class="keyword">&lt;a</span><span class="normal"> </span><span class="type">href</span><span class="symbol">=</span><span class="string">"http://algs4.cs.princeton.edu/55compress"</span><span class="keyword">&gt;</span><span class="comment">Section 5.5</span><span class="keyword">&lt;/a&gt;</span><span class="comment"> of</span>
<span class="comment"> *  </span><span class="keyword">&lt;i&gt;</span><span class="comment">Algorithms, 4th Edition</span><span class="keyword">&lt;/i&gt;</span><span class="comment"> by Robert Sedgewick and Kevin Wayne.</span>
<span class="comment"> *  </span><span class="keyword">&lt;p&gt;</span>
<span class="comment"> *  See also {</span><span class="type">@link</span><span class="comment"> BinaryDump} and {</span><span class="type">@link</span><span class="comment"> HexDump}.</span>
<span class="comment"> *</span>
<span class="comment"> *  </span><span class="type">@author</span><span class="comment"> Robert Sedgewick</span>
<span class="comment"> *  </span><span class="type">@author</span><span class="comment"> Kevin Wayne</span>
<span class="comment"> */</span>
<span class="keyword">public</span><span class="normal"> </span><span class="keyword">class</span><span class="normal"> </span><span class="classname">PictureDump</span><span class="normal"> </span><span class="cbracket">{</span>

<span class="normal">    </span><span class="comment">// Do not instantiate.</span>
<span class="normal">    </span><span class="keyword">private</span><span class="normal"> </span><span class="function">PictureDump</span><span class="symbol">()</span><span class="normal"> </span><span class="cbracket">{</span><span class="normal"> </span><span class="cbracket">}</span>

<span class="normal">    </span><span class="comment">/**</span>
<span class="comment">     * Reads in a sequence of bytes from standard input and draws</span>
<span class="comment">     * them to standard drawing output as a width-by-height picture,</span>
<span class="comment">     * using black for 1 and white for 0 (and red for any leftover</span>
<span class="comment">     * pixels).</span>
<span class="comment">     */</span>
<span class="normal">    </span><span class="keyword">public</span><span class="normal"> </span><span class="keyword">static</span><span class="normal"> </span><span class="type">void</span><span class="normal"> </span><span class="function">main</span><span class="symbol">(</span><span class="normal">String</span><span class="symbol">[]</span><span class="normal"> args</span><span class="symbol">)</span><span class="normal"> </span><span class="cbracket">{</span>
<span class="normal">        </span><span class="type">int</span><span class="normal"> width </span><span class="symbol">=</span><span class="normal"> Integer</span><span class="symbol">.</span><span class="function">parseInt</span><span class="symbol">(</span><span class="normal">args</span><span class="symbol">[</span><span class="number">0</span><span class="symbol">]);</span>
<span class="normal">        </span><span class="type">int</span><span class="normal"> height </span><span class="symbol">=</span><span class="normal"> Integer</span><span class="symbol">.</span><span class="function">parseInt</span><span class="symbol">(</span><span class="normal">args</span><span class="symbol">[</span><span class="number">1</span><span class="symbol">]);</span>
<span class="normal">        </span><span class="usertype">Picture</span><span class="normal"> picture </span><span class="symbol">=</span><span class="normal"> </span><span class="keyword">new</span><span class="normal"> </span><span class="function">Picture</span><span class="symbol">(</span><span class="normal">width</span><span class="symbol">,</span><span class="normal"> height</span><span class="symbol">);</span>
<span class="normal">        </span><span class="keyword">for</span><span class="normal"> </span><span class="symbol">(</span><span class="type">int</span><span class="normal"> row </span><span class="symbol">=</span><span class="normal"> </span><span class="number">0</span><span class="symbol">;</span><span class="normal"> row </span><span class="symbol">&lt;</span><span class="normal"> height</span><span class="symbol">;</span><span class="normal"> row</span><span class="symbol">++)</span><span class="normal"> </span><span class="cbracket">{</span>
<span class="normal">            </span><span class="keyword">for</span><span class="normal"> </span><span class="symbol">(</span><span class="type">int</span><span class="normal"> col </span><span class="symbol">=</span><span class="normal"> </span><span class="number">0</span><span class="symbol">;</span><span class="normal"> col </span><span class="symbol">&lt;</span><span class="normal"> width</span><span class="symbol">;</span><span class="normal"> col</span><span class="symbol">++)</span><span class="normal"> </span><span class="cbracket">{</span>
<span class="normal">                </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(!</span><span class="normal">BinaryStdIn</span><span class="symbol">.</span><span class="function">isEmpty</span><span class="symbol">())</span><span class="normal"> </span><span class="cbracket">{</span>
<span class="normal">                    </span><span class="type">boolean</span><span class="normal"> bit </span><span class="symbol">=</span><span class="normal"> BinaryStdIn</span><span class="symbol">.</span><span class="function">readBoolean</span><span class="symbol">();</span>
<span class="normal">                    </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(</span><span class="normal">bit</span><span class="symbol">)</span><span class="normal"> picture</span><span class="symbol">.</span><span class="function">set</span><span class="symbol">(</span><span class="normal">col</span><span class="symbol">,</span><span class="normal"> row</span><span class="symbol">,</span><span class="normal"> Color</span><span class="symbol">.</span><span class="normal">BLACK</span><span class="symbol">);</span>
<span class="normal">                    </span><span class="keyword">else</span><span class="normal">     picture</span><span class="symbol">.</span><span class="function">set</span><span class="symbol">(</span><span class="normal">col</span><span class="symbol">,</span><span class="normal"> row</span><span class="symbol">,</span><span class="normal"> Color</span><span class="symbol">.</span><span class="normal">WHITE</span><span class="symbol">);</span>
<span class="normal">                </span><span class="cbracket">}</span>
<span class="normal">                </span><span class="keyword">else</span><span class="normal"> </span><span class="cbracket">{</span>
<span class="normal">                    picture</span><span class="symbol">.</span><span class="function">set</span><span class="symbol">(</span><span class="normal">col</span><span class="symbol">,</span><span class="normal"> row</span><span class="symbol">,</span><span class="normal"> Color</span><span class="symbol">.</span><span class="normal">RED</span><span class="symbol">);</span>
<span class="normal">                </span><span class="cbracket">}</span>
<span class="normal">            </span><span class="cbracket">}</span>
<span class="normal">        </span><span class="cbracket">}</span>
<span class="normal">        picture</span><span class="symbol">.</span><span class="function">show</span><span class="symbol">();</span>
<span class="normal">    </span><span class="cbracket">}</span>
<span class="cbracket">}</span>

<span class="comment">/******************************************************************************</span>
<span class="comment"> *  Copyright 2002-2015, Robert Sedgewick and Kevin Wayne.</span>
<span class="comment"> *</span>
<span class="comment"> *  This file is part of algs4.jar, which accompanies the textbook</span>
<span class="comment"> *</span>
<span class="comment"> *      Algorithms, 4th edition by Robert Sedgewick and Kevin Wayne,</span>
<span class="comment"> *      Addison-Wesley Professional, 2011, ISBN 0-321-57351-X.</span>
<span class="comment"> *      </span><span class="url">http://algs4.cs.princeton.edu</span>
<span class="comment"> *</span>
<span class="comment"> *</span>
<span class="comment"> *  algs4.jar is free software: you can redistribute it and/or modify</span>
<span class="comment"> *  it under the terms of the GNU General Public License as published by</span>
<span class="comment"> *  the Free Software Foundation, either version 3 of the License, or</span>
<span class="comment"> *  (at your option) any later version.</span>
<span class="comment"> *</span>
<span class="comment"> *  algs4.jar is distributed in the hope that it will be useful,</span>
<span class="comment"> *  but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<span class="comment"> *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
<span class="comment"> *  GNU General Public License for more details.</span>
<span class="comment"> *</span>
<span class="comment"> *  You should have received a copy of the GNU General Public License</span>
<span class="comment"> *  along with algs4.jar.  If not, see </span><span class="url">http://www.gnu.org/licenses.</span>
<span class="comment"> ******************************************************************************/</span>
</tt></pre>

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Last updated: Mon Mar 21 10:51:08 EDT 2016.
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